Henry d



H.1). KLoT's. SPINNING SPINDLE.

(Hof-Model.)

. wnees# Nrrs STATES HENRY D. KLors, or New YORK, N. Y.

SPINNING-SPINDLE.

SPECIFICATION forming par of Letters Patent No. 545,590, dated september s, 1895. Application filed December 10, 1894. Serial No. 531,351. (No model.)

To tZZ whom t may concern:

Be it known that I, HENRY D. KLOTS, a citizen of the United States, residing in the city, county, and State of New York, have invented a certain new and useful Improvement 1n Spinning-Spindles, of which the following is a specification.

My invention relates generally` to the art of spinning silk or other filaments by means of bobbin-holding spindlesjrevolved at a high rate of speed; audit has for its particular object to prevent injurious vibration of the spindle due to an unbalanced load. I attain this end primarily by placing the spindle in vibratory communication with a vibratory bodyA tuned to vibrate at a lower or Widely-diiferent rate from that at which the spindle rotates and of a moment sufficient to overpower the vibratory lmoment of the spindle, so that the vibrations set up in the spindle in accord with itsl rotation under an unbalanced load will be transmitted to the vibratory body, which, vibrating at variance Withthe spindle and being of greater moment than the same, will oppose, overpower, and thus completely neutralize the ,vibrations in the spindle. I accomplish this more specifically by mounting the spindle-bearing yieldingly on the spindle rail or support by means of metallic or nonmetallic cushions or by any other well-known or' approved mode, and arranging a spring to be carried by the yielding spindle-bearing or otherwise placed in vibratory communication with the spindle, said spring being loaded or otherwise designed to vibrate at a rate vwidely diderent from or lower than the rate of rotation and vibration of the spindle, and to be of a moment greater than the vibratory moment of the spindle, so as to oppose and overpower the vibrations of the spindle as before stated.

The mode in which I practice my invention is set forth in detail hereinafter, reference being had to the accompanying drawings, forming part of this specification, in which corresponding parts are designated by similar letters of reference in all the figures.

. Figures 1, 2, and 3 are sectional elevations of different forms of spinning-spindles, illustrating some dierent modes of carrying my invention into effect.

In Fig. 1, A designates a spindle-rail, B a

combined bolster and step bearing mounted yieldingly on the rail, and C the spindle, the blade of which is here shown constituted with va iiexible portion D intermediate the bobbinpreventing vibration, as described in my Aprior Letters Patent No. 501,792, issued July '18, 1893. Such a yielding bearing or flexible blade does not usuallyV prevent vibration due to an unbalanced load, but rather yields to it and hinders its transmission elsewhere. I

now actually prevent the vibration by communicating thereto the vibrations of a body of sufficient moment and of such a nature as not to vibrate in unison with the spindle. Thus in this instance I rigidly attach to the lower end of the yielding bearing-B a depending rod G, of resilient metal, whichl I additionally load by means lof a mass II at its lower end in such manner that the rate of vibration of thebody composed of the spring G and mass H will be'greatly below that of the rotation and vibration of the loaded spindle O and its moment of vibration greater than that of the loaded spindle, so that the vibrations of the spindle communicated to the spring G through the yielding bearing will be eifectually overpowered and neutralized by the slower vibration of the said sprin g. In practice I find that in starting this spindle, as soon as the rate of rotation and vibration thereof exceeds the first or whole note of the spring G all vibration will cease until the rate of rotation and vibration of the spindle accords with the second note or harmonic of the spring G, when the vibration will be set up momentarily until that period is again exceeded, when all vibrations will again cease, and so on. When the higher harmonics, however, of the spring accord with the rate of vibration of the spindle, the period of vibration or note of the spring is so high that it will not be adected by the spindle, which will then continue free from vibration.

In Fig. 2 I have illustrated another Way of performing my invention, thek spindle-blade being in this instance itself thinned'and prolonged below the bolster-bearing B to form the neutralizing-spring G, the step-bearing K being independent of the bolster-bearing B.

IOO

In Fig. 3 I have illustrated still another mode of performing my invention, the spindle in this instance having an internal bearidly held at its upper end by the spindle-bearing, either by being rigidly attached thereto, as in Figs. 1 and 3, or by forming an extension of the rigidly-held, though rotatable, spindle-blade, as in Fig. 2, so that the vibrations or oscillations of the spindle-bearing on its yielding mounting are in each case imparted to the upper end of the spring G, G', or G2. The lower end of each of the antivibrating springs G, G, or G2, is, however, loose so as to be free to vibrate in accordance with its own natural period of vibration, the tube and Step-bearing exampled in Fig. 2 not interfering with this limited lateral movement, and thus the vibrations or oscillations imparted by the yieldingly-mounted bearing to the upper end of the antivibrating spring G, G', or G2set up the natural vibrations of said spring, which, being at a diierent rate from and of a greater strength than the vibrations of the spindle and its bearing, oppose and ellectually neutralize said vibrations. It is further evident that in the example of my invention shown in Fig. 3 the thinned portion of the internal spindle-bearing B2 between the lower end ofthe spindle and the base-piece serves as Well as, although somewhat diierently from, the spring D in Fig. l as a iexible spring connection to transmit the local vibrations ot' the bobbin-holding portion of the spindle to the portion of the spindle-bearing mounted yieldingly on the rail.

I claim as my invention- 1. The combination, with a spindle rail, a spindle, and its bearing mounted yieldingly on the rail, of an anti-vibrating spring held rigidly at one end by the spindle bearing so as to partake of the vibratory movements thereof on its yielding bearing, but at its other end loose and tree to vibrate laterally in all directions in accordance with its own period of vibration.

2. The combination, with a spindle rail, a spindle, its bearing mounted yieldingly on the rail, and a spring interposed between the bobbin-holding portion of the spindle and the portion of the bearing mounted yieldingly on the rail, ot' an anti-vibrating spring held rig idly at one end by the spindle bearing, but its other end loose and free to vibrate laterally in accordance with its own period of vibration.

In testimony whereot` I, the said HENRY D. KLOTs, have hereunto set my hand, in the city of New York, this 28th day of November, 189i.

, HENRY D. KLOTS.

In presence of- GURDON PENDLETON, Jr., MARC Winans. 

